Antiskidding device



Feb.. 22; 1927.

- 1,618,869 c. w. ERWIN ANTISKIDDING DEV IC E Filed May 1924 4 1 v v V INVENTOR Patented Feb. 22, 1927.

CYRIL WADE ERWIN, OFLRURAL VALLEY, rENNsYLvANIA.

' ANTISKIDDING DEVICE.

Application filed May 31,

This invention relates to anti-skidding devices for automobiles and more particularly to the cross chain type, of .antiskidding device.

An important object of the invention is to provide a device of this character which may be readily applied to a vehicle and in which a maximum anti-skidding surface .is provided including chains'so constructed that these chains do .not come into contact with one anotherso as to cause unpleasant rattling noises during operation of the device. i

A further object of the invention ,is to provide a device of this character which may be very firmly applied to a wheel-without the chains being tightly bound against the surface of the tire, which binding, as is well known to thosefamiliar with the art, has a tendency to cause these chains, since theymay not shift upon the tire, to out into the surface of the tire and destroy the same.

A further object of the invention is to provide 5 device. of this character which may be cheaply and readily produced and which will be durable and efiici-ent in service. 3

A still further object of the invention is to provide novel and improved means for attaching such cross chains to be the wheels of vehicles in which the tire rim is de'mount ably applied to the wheel.

. These and other ob ects Iattain by the a character it is practically impossible for the construction shown in, the accompanying drawings, wherein for the purpose of illustration is shown a preferred embodiment of my invention and where1n:-

Figure 1 is a' vertical sectional view through the felly and tireof a wheel having applied thereto an anti-skidding member constructed in accordance with my inven tion;

Figure 2 is a plan view of the anti-skidding member removed from the tire; Figure 3 is a perspective view of a, section of the type of chain employed.

Referring now more particularly to the drawings, the numeral 10 indicates the end plates of the cross member, these end plates Y tion and the chains 'at' the same time from being triangular inform and having attached thereto at two of the apices of the triple link chains 11 which connect the plates. Intermediate theseapices the plate has secured thereto the ends of an antiskid band. 12 which is preferably formed from a strip of pliable material such as 1924 Serial No. 71?;117.

raw hide. This strip preferably increases in width toward the center thereof and has secured thereto a plurality of outstanding anti-skid lugs 13 which are preferably formed from brass and riveted to the strip. The third apex of each end plate 10 has formed therein a transversely extending slot 14 the purpose of which will presently appear.

, Any suitable means can be provided for attaching these cross chains to the vehicle wheels but where these vehicle wheels have demountable rims-I preferably provide the structure illustrated. This structure consists of a pair of hook members 15 and 16 'a. ranged upon the outside and inside of the Wheel respectively and engaged with o posite ends of a rim clamping bolt. 17. ach of these hooks is so constructed that it conformsto and fits snugly againstthe surface to which it is applied. That upon the inner surface of the wheel conforms to the shaping of the adjacent surface of the wheel felly l8 and fixed rim 19 and is held in position by the head and that on the outer face of the wheel conforms to the shaping of the outer face of the removable rim lug 20. The hook at the inner surface of the wheel is in the form of asimple hook and is engageable through the slot 14 ofone end plate, while 10 at the opposite end of the cross member.

It will be seen that with a device of this chains to become loosened, the inner hook having a considerable depth so that there is "not suflicient play in the cross member after the opposite end is engaged with the snap hook for this inner end to become disengaged and the snap book will, of course, prevent disengagement of the outer end. In the construction of, the device the anti-skidding.

member 13 is so constructed that it tightly and flatly fits against the surface of the tire when the cross chain is in applied position and the chains are of such a length that they are loosely engagjedwith the surface of a tire when the device is applied. Thus the cross member may be held fixedly in posiven'tion.. I do not limit myself to such specific structure as hereinbefore set forth except as one of theplates and at the opposite end.

' hereinafter claimed. at a. corresponding point of the other of the 10- I claim: plates, and a band connected at its ends to An anti-skidding member comprising a .said plates intermediate the chains and of 5 member adaptedto extend across'the tread less length than the chains.

of a tire having a pair of similar end plates, In testimony whereof I hereunto eflix my two sides of the end plates being opposed, a signature. i Y pair of chains each connected at one end to GYRIL .WADE ERWINI. 

